You can also exchange it for a new box if you're having technical difficulties. A technician usually installs your cable and cable box, but you can remove a Comcast cable box and return or exchange it by yourself.
Eat vitamin A each day to keep your digestive system healthy. The surface of your digestive tract is made up of mucosal tissues. These tissues secrete compounds that help with digestion -- the mucosal lining in your stomach, for example, secretes stomach acid -- and also absorb the nutrients from your food.
Vitamin D. Vitamin D is an essential vitamin found in foods such as eggs and fish. Vitamin D is also available as a supplement. Vitamin D is important to help maintain normal levels of calcium and phosphorus in the blood. It fights disease by boosting your immune system, and also aids in cell growth. However, too much vitamin D can cause constipation, poor appetite, weakness, weight loss and nausea.